scholarly journals Securing Digital Images through Simple Permutation-Substitution Mechanism in Cloud-Based Smart City Environment

2021 ◽  
Vol 2021 ◽  
pp. 1-17
Author(s):  
Ahmad Alanezi ◽  
Bassem Abd-El-Atty ◽  
Hoshang Kolivand ◽  
Ahmed A. Abd El-Latif ◽  
Basma Abd El-Rahiem ◽  
...  
Keyword(s):  
Chaotic Systems ◽  
Chaotic Maps ◽  
Data Transfer ◽  
Smart Cities ◽  
Good Efficiency ◽  
Suggested Approach ◽  
City Environment ◽  
Chebyshev Map ◽  
Plain Image ◽  
Image Cryptosystem

Data security plays a significant role in data transfer in cloud-based smart cities. Chaotic maps are commonly used in designing modern cryptographic applications, in which one-dimensional (1D) chaotic systems are widely used due to their simple design and low computational complexity. However, 1D chaotic maps suffer from different kinds of attacks because of their chaotic discontinuous ranges and small key-space. To own the benefits of 1D chaotic maps and avoid their drawbacks, the cascading of two integrated 1D chaotic systems has been utilized. In this paper, we report an image cryptosystem for data transfer in cloud-based smart cities using the cascading of Logistic-Chebyshev and Logistic-Sine maps. Logistic-Sine map has been utilized to permute the plain image, and Logistic-Chebyshev map has been used to substitute the permuted image, while the cascading of both integrated maps has been utilized in performing XOR procedure on the substituted image. The security analyses of the suggested approach prove that the encryption mechanism has good efficiency as well as lower encryption time compared with other related algorithms.

scholarly journals A novel multi-image cryptosystem based on weighted plain images and using combined chaotic maps

2021 ◽  
Author(s):  
Ahmad Pourjabbar Kari ◽  
Ahmad Habibizad Navin ◽  
Amir Massoud Bidgoli ◽  
Mirkamal Mirnia
Keyword(s):  
Chaotic Maps ◽  
The Other ◽  
Second Step ◽  
Hénon Map ◽  
Henon Map ◽  
Chaotic Sequences ◽  
Xor Operation ◽  
Plain Image ◽  
Diffusion Phase ◽  
Image Cryptosystem

Abstract This paper introduces a new multi-image cryptosystem based on modified Henon map and nonlinear combination of chaotic seed maps. Based on the degree of correlation between the adjacent pixels of the plain image, a unique weight is assigned to the plain image. First, the coordinates of plain images are disrupted by modified Henon map as confusion phase. In the first step of diffusion phase, the pixels content of images are changed separately by XOR operation between confused images and matrices with suitable nonlinear combination of seed maps sequences. These combination of seed maps are selected depending on the weight of plain images as well as bifurcation properties of mentioned chaotic maps. After concatenating the matrices obtained from the first step of diffusion phase, the bitwise XOR operation is applied between newly developed matrix and the other produced matrix from the chaotic sequences of the Logistic-Tent-Sine hybrid system, as second step of diffusion phase. The encrypted image is obtained after applying shift and exchange operations. The results of the implementation using graphs and histograms show that the proposed scheme, compared to some existing methods, can effectively resist common attacks and can be used as a secure method for encrypting digital images.

Smart Homes and Offices

2022 ◽  
pp. 679-700
Author(s):  
Nikita Jain ◽  
Rachna Jain ◽  
Vaibhav Kumar
Keyword(s):  
Internet Of Things ◽  
Smart City ◽  
Data Transfer ◽  
Smart Cities ◽  
Smart Homes ◽  
Privacy Preserving ◽  
Standard Of Living ◽  
City Environment ◽  
The People ◽  
Direct Implementation

Smart Homes and Offices (SHO) are composed of interlinked components with constant data transfer and services targeted at increasing the lifestyle of the people. This chapter describes about the smart components and how SHO are direct implementation of Internet of Things (IOT). The major paradigm in this chapter is appliances supporting smart aspects of SHO, their applications and change in technology in context of smart Homes and Offices. Here we have also discussed the standardization and personalization of gadgets and how it has been increasing our standard of living. Finally, the chapter focuses on privacy preserving mechanisms, its essence over smart cities, strong architecture related to privacy, preserving mechanism, and various approaches available that can retaliate these issues in a smart city environment.

Smart Homes and Offices

2019 ◽  
pp. 84-105
Author(s):  
Nikita Jain ◽  
Rachna Jain ◽  
Vaibhav Kumar
Keyword(s):  
Internet Of Things ◽  
Smart City ◽  
Data Transfer ◽  
Smart Cities ◽  
Smart Homes ◽  
Privacy Preserving ◽  
Standard Of Living ◽  
City Environment ◽  
The People ◽  
Direct Implementation

Smart Homes and Offices (SHO) are composed of interlinked components with constant data transfer and services targeted at increasing the lifestyle of the people. This chapter describes about the smart components and how SHO are direct implementation of Internet of Things (IOT). The major paradigm in this chapter is appliances supporting smart aspects of SHO, their applications and change in technology in context of smart Homes and Offices. Here we have also discussed the standardization and personalization of gadgets and how it has been increasing our standard of living. Finally, the chapter focuses on privacy preserving mechanisms, its essence over smart cities, strong architecture related to privacy, preserving mechanism, and various approaches available that can retaliate these issues in a smart city environment.

scholarly journals A Novel S-Box Dynamic Design Based on Nonlinear-Transform of 1D Chaotic Maps

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1313
Author(s):  
Wenhao Yan ◽  
Qun Ding
Keyword(s):  
Chaotic Systems ◽  
Chaotic Maps ◽  
Chaotic Map ◽  
Logistic Map ◽  
Sample Entropy ◽  
One Dimension ◽  
Linear Combinations ◽  
Dynamic Design ◽  
Construction Methods ◽  
Low Dimensional

In this paper, a method to enhance the dynamic characteristics of one-dimension (1D) chaotic maps is first presented. Linear combinations and nonlinear transform based on existing chaotic systems (LNECS) are introduced. Then, a numerical chaotic map (LCLS), based on Logistic map and Sine map, is given. Through the analysis of a bifurcation diagram, Lyapunov exponent (LE), and Sample entropy (SE), we can see that CLS has overcome the shortcomings of a low-dimensional chaotic system and can be used in the field of cryptology. In addition, the construction of eight functions is designed to obtain an S-box. Finally, five security criteria of the S-box are shown, which indicate the S-box based on the proposed in this paper has strong encryption characteristics. The research of this paper is helpful for the development of cryptography study such as dynamic construction methods based on chaotic systems.

scholarly journals CHANNEL ALLOCATION FOR WIRELESS NETWORKS BASED ON INTELLIGENT METHOD

2021 ◽  
Vol 20 (4) ◽  
pp. 32-37
Author(s):  
Dominik NEZNÍK ◽  
◽  
Ľubomír DOBOŠ
Keyword(s):  
Wireless Networks ◽  
Data Transfer ◽  
Channel Allocation ◽  
Smart Cities ◽  
Data Rates ◽  
Different Types ◽  
Fuzzy Logic Method ◽  
Network Technologies ◽  
Near Future

In this paper, will be presented actual research of the intelligent channel allocation. The intelligent channel allocation is based on combination of fuzzy logic method and game theory attributes to increase quality of link in network. The channel allocations will become an important phenomenon in different types of networks such as 5G technology, wireless networks (IEEE 802.11xx), Z-Wave, LoRa, 3G, 4G, etc. In the near future, new network technologies, Internet of Things (IoT) and Smart Cities will need to have intelligent channel allocation to prevent interference on the channels used for data transfer. These networks along with IoT are considered as promising technology, that interconnects different types of networks into one fully functional network. The aim of this paper is to present the concept of a methods for channel allocation in wireless networks, where channels work as communication medium based on IEEE 802.11xx technology. The simulations prove, that proposed method is able to provide lower interference, improve data rates and increase quality of links.

Cyber Security Challenges for Smart Cities

2022 ◽  
pp. 1459-1480
Author(s):  
Anand Nayyar ◽  
Rachna Jain ◽  
Bandana Mahapatra ◽  
Anubhav Singh
Keyword(s):  
Cyber Security ◽  
Smart City ◽  
Smart Grids ◽  
Data Transfer ◽  
Smart Cities ◽  
Privacy Preserving ◽  
Automation System ◽  
Security Models ◽  
The People ◽  
Aerial Vehicle

Smart cities are composed of interlinked components with constant data transfer and services targeted at increasing the life style of the people. The chapter focuses on diverged smart city components as well as the security models designed to be implemented. The four major paradigms discussed in this chapter are smart grids, building automation system (BAS), unmanned aerial vehicle (UAV), and smart vehicles. Apart from addressing the security concerns of every component, the major highlights of this chapter are architecture, smart environment, industry, lifestyle, services, and digital lifestyle quality. Finally, the chapter focuses on privacy preserving mechanisms, its essence over smart cities, strong architecture related to privacy, preserving mechanism, and various approaches available that can retaliate these issues in a smart city environment.

scholarly journals Secure Communication of Fractional Complex Chaotic Systems Based on Fractional Difference Function Synchronization

Complexity ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-10 ◽  
Author(s):  
Jiaxun Liu ◽  
Zuoxun Wang ◽  
Minglei Shu ◽  
Fangfang Zhang ◽  
Sen Leng ◽  
...  
Keyword(s):  
Secure Communication ◽  
Chaotic Systems ◽  
Digital Signal ◽  
Fractional Difference ◽  
Voice Signal ◽  
Difference Function ◽  
Image Cryptosystem ◽  
Definition Of ◽  
Complex Chaotic Systems ◽  
Function Synchronization

Fractional complex chaotic systems have attracted great interest recently. However, most of scholars adopted integer real chaotic system and fractional real and integer complex chaotic systems to improve the security of communication. In this paper, the advantages of fractional complex chaotic synchronization (FCCS) in secure communication are firstly demonstrated. To begin with, we propose the definition of fractional difference function synchronization (FDFS) according to difference function synchronization (DFS) of integer complex chaotic systems. FDFS makes communication secure based on FCCS possible. Then we design corresponding controller and present a general communication scheme based on FDFS. Finally, we respectively accomplish simulations which transmit analog signal, digital signal, voice signal, and image signal. Especially for image signal, we give a novel image cryptosystem based on FDFS. The results demonstrate the superiority and good performances of FDFS in secure communication.

FAULT TOLERANCE AND DETECTION IN CHAOTIC COMPUTERS

2007 ◽  
Vol 17 (06) ◽  
pp. 1955-1968 ◽  
Author(s):  
MOHAMMAD R. JAHED-MOTLAGH ◽  
BEHNAM KIA ◽  
WILLIAM L. DITTO ◽  
SUDESHNA SINHA
Keyword(s):  
Chaotic Systems ◽  
Chaotic Maps ◽  
Structural Testing ◽  
Testing Time ◽  
Computing Device ◽  
One Dimensional ◽  
Testing Method ◽  
Higher Dimensional ◽  
Parameter Variations ◽  
Logic Blocks

We introduce a structural testing method for a dynamics based computing device. Our scheme detects different physical defects, manifesting themselves as parameter variations in the chaotic system at the core of the logic blocks. Since this testing method exploits the dynamical properties of chaotic systems to detect damaged logic blocks, the damaged elements can be detected by very few testing inputs, leading to very low testing time. Further the method does not entail dedicated or extra hardware for testing. Specifically, we demonstrate the method on one-dimensional unimodal chaotic maps. Some ideas for testing higher dimensional maps and flows are also presented.

SYNCHRONIZING HIGH DIMENSIONAL CHAOTIC SYSTEMS VIA EIGENVALUE PLACEMENT WITH APPLICATION TO CELLULAR NEURAL NETWORKS

1999 ◽  
Vol 09 (04) ◽  
pp. 705-711 ◽  
Author(s):  
GIUSEPPE GRASSI ◽  
SAVERIO MASCOLO
Keyword(s):  
Neural Networks ◽  
Numerical Simulations ◽  
Linear Systems ◽  
Chaotic Systems ◽  
Cellular Neural Networks ◽  
High Dimensional ◽  
Suggested Approach ◽  
Error Dynamics ◽  
Controllability Property

In this paper a method for synchronizing high dimensional chaotic systems is developed. The objective is to generate a linear error dynamics between the master and the slave systems, so that synchronization is achievable by exploiting the controllability property of linear systems. The suggested approach is applied to Cellular Neural Networks (CNNs), which can be considered as a tool for generating complex hyperchaotic behaviors. Numerical simulations are carried out for synchronizing CNNs constituted by Chua's circuits.

scholarly journals A novel symmetric image cryptosystem resistant to noise perturbation based on S8 elliptic curve S-boxes and chaotic maps

2020 ◽  
Vol 135 (11) ◽  
Author(s):  
Haris Aziz ◽  
Syed Mushhad Mustuzhar Gilani ◽  
Iqtadar Hussain ◽  
Muhammad Azeem Abbas
Keyword(s):  
Elliptic Curve ◽  
Chaotic Maps ◽  
Noise Perturbation ◽  
Image Cryptosystem
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